gear oil for ford rear

General engine tech -- Drag Racing to Circle Track

Moderator: Team

Post Reply
chevy art
Pro
Pro
Posts: 311
Joined: Mon Jul 14, 2008 10:56 am

gear oil for ford rear

Post by chevy art » Fri Sep 08, 2017 1:08 pm

what brand and weight gear oil should be used in my fore 9 inch true trac rear. car is street driven thanks art

mag2555
Guru
Guru
Posts: 2074
Joined: Sun Sep 18, 2011 11:31 am

Re: gear oil for ford rear

Post by mag2555 » Fri Sep 08, 2017 1:42 pm

How about a 80w90 GL5 rated lube with a bottle of limited slip additive.

77cruiser
Expert
Expert
Posts: 951
Joined: Fri Dec 29, 2006 10:32 pm
Location: I Falls MN
Contact:

Re: gear oil for ford rear

Post by 77cruiser » Fri Sep 08, 2017 1:45 pm

True Trac doesn't have clutches does it?
Jim

ProPower engines
Guru
Guru
Posts: 6860
Joined: Sun Jan 21, 2007 1:16 pm
Location: VICTORIA BC CANADA

Re: gear oil for ford rear

Post by ProPower engines » Fri Sep 08, 2017 1:59 pm

I would suggest Redline full syn. light weight shock proof gear oil in the blue and white bottle.
The torque sensing differentials really like the full syn. oils and if you do beat on it it has the shear strength needed for hard working race applications
Real Race Cars Don't Have Doors

RCJ
Expert
Expert
Posts: 566
Joined: Wed Jul 25, 2007 6:15 am
Location: Oklahoma

Re: gear oil for ford rear

Post by RCJ » Fri Sep 08, 2017 3:17 pm

If you have a lot of power or really deep gears (5.13,5.83 etc..) you will get less wear with 140wieght

ProPower engines
Guru
Guru
Posts: 6860
Joined: Sun Jan 21, 2007 1:16 pm
Location: VICTORIA BC CANADA

Re: gear oil for ford rear

Post by ProPower engines » Fri Sep 08, 2017 3:23 pm

RCJ wrote:If you have a lot of power or really deep gears (5.13,5.83 etc..) you will get less wear with 140wieght
X2
If thats the case with a steep gear use the Red-Line 85/140 shock proof red
Real Race Cars Don't Have Doors

treyrags
Pro
Pro
Posts: 294
Joined: Thu Mar 25, 2010 5:33 pm
Location: Central Texas

Re: gear oil for ford rear

Post by treyrags » Fri Sep 08, 2017 3:30 pm

Amsoil 75/90. Put it in and forget it.
Image

Post Reply